Happy to oblige, when I believe I'm competent to advise others :-)
On 23/01/12 14:21, Hans-Peter Nilsson wrote:
On Mon, 23 Jan 2012, Paul S wrote:
Thanks Dave,
I would never have guessed from gccinternals.pdf that it is possible to use
mode iterators to select predicates& constraints ...
Really? If you but if you have suggestions for improving the
documentation, that'd be welcome.
I think I have a use for
this today :-)
Cheers, Paul.
On 20/01/12 10:26, Dave Korn wrote:
On 17/01/2012 21:16, Paul S wrote:
For example the i386 seems to use predicates and constraints of the form
<*_operand> and<m/r/i> for the reload versions of these instructions -
and I haven't been able to find definitions of these or a mention in
gcc_internals.pdf of any special meaning assigned to the<> notation.
See http://gcc.gnu.org/onlinedocs/gccint/Substitutions.html, and take a
look
for the define_[code/mode]_[attr/iterator] definitions around line ~650ish
of
i386.md
cheers,
DaveK
